diff options
| author | Alex Hung <alex.hung@canonical.com> | 2013-05-06 08:23:43 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-07-09 10:51:21 -0700 |
| commit | 0e4337b79778174128fcd785f353047384499d3e (patch) | |
| tree | 966c0ac5cd5cb6788200ec8988adbb320ac34102 | |
| parent | 047cce410d083cf08de91bf76aa9bbdae989a285 (diff) | |
ACPI video: ignore BIOS initial backlight value for HP 1000
commit 4ef366c583d6180b1c951147869ee5a3038834f2 upstream.
On HP 1000 lapops, BIOS reports minimum backlight on boot and
causes backlight to dim completely. This ignores the initial backlight
values and set to max brightness.
References:: https://bugs.launchpad.net/bugs/1167760
Signed-off-by: Alex Hung <alex.hung@canonical.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Cc: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/acpi/video.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index 415448af36b..4d608fccee1 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -463,6 +463,14 @@ static struct dmi_system_id video_dmi_table[] __initdata = { DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion m4 Notebook PC"), }, }, + { + .callback = video_ignore_initial_backlight, + .ident = "HP 1000 Notebook PC", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, "HP 1000 Notebook PC"), + }, + }, {} }; |